151 FER^rOR : GEOLOGY AND COAL RESOURCES OF KOREA, C. P. 
those known to the local inhabitants and also several discovered 
by myself ; and, as a result T am convinced that, were time allotted 
for a detailed and careful survey of this field, it would be pos- 
sible to correlate with some accuracy the coal seams exposed. 
On a map (Plate 30) of the country round the villages of 
Kurasia and Chirmiri on this field, I have indicated all the 
coal outcrops examined, and in the text (pages 188, 196, 197. 201, 
202 and Appendix No. I), have suggested their possible correla- 
tion. 
The reason for the difference between the Sanhat and Kurasia 
fields in this respect (possibihty of correlating seams) lies in the 
more hilly nature of the Kurasia field, on account of which the 
coal seams are less often obscured by alluvial material than in 
the northern field. 
In addition to the plan of the Kurasia field referred to above 
G olo ical ma ^ reproduce with this report that portion of 
eoogica map. geological map of the Rewah Gondwana 
basin, given in Hughes' memoir, that relates to the Korea State 
(Plate 31) south of Lat. 23°30'N. I entered the State at its south- 
western corner near Jaraunda, and marched north-eastwards through 
Khargaon, Chirmiri, Kurasia, and Banjaridand, to Baikanthpur, 
Dewadand, the new capital of the State ; thence I proceeded 
northwards to Rakeya, and then westwards along the southern edge 
of the Sanhat field, as far as Ghutra, whence I marched south- 
wards down the Hasdo valley by Balbahara, Karimati, and Banji, 
finally leaving the State at Kora on my way back to Pendra 
Road. This tour enabled me to test the accuracy of my predecessors' 
map at many points, and I find myself in complete agreement there- 
with, except for a few trivial differences. Consequently their map 
is repeated in this paper without any modification of the geological 
boundaries. But I have omitted the coal seams as shown on 
their map, inserting instead on the Sanhat field serial numbers 
corresponding to the outcrops enumerated in Appendix I. The coal 
outcrops visited by me in the Kurasia field are shown in the 
larger-scale map (Plate 30) by numbers corresponding to those 
in the same Appendix. 
In the task of reducing my coal samples to manageable bulk, 
^ ^ J I received considerable help from Babu 
oa sampea. Bankim Bihari Gupta, Field Collector of the 
Geological Survey, and on my departure southwards from Ghutra I 
